Slitting means



June 21, 1932. L A CAMERON SLITTING MEANSl v Filed Oct. 28. 1927 5 Sheets-Sheet l Q Cv; I* INVENTOR N I BY MQ "w,

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ATTORNEY June 21, 1932. J, A, GAMER@ 1,863,619

SLITTING MEANS Filed OGt. 28. 1927 3 Sheets-Sheet 2 11 1; INVENTOR A TTORNE Y June 21, 1932.

J. A. CAMERON SLITTING MEANS Filed oct. 28, 1927 B'Sheefcs-Sheet 3 INVENTOR ATTORNEY Y Patented June 21, 1932 sometimes takes UNITI-:D STATES PATENT OFFICE JAMES A. CAMERON, 0F BROOKLYN, NEW YORK, ASSIGNOB, T0 CAMERON MACHINE COMPANY, OF BROOKLYN, :NEW YORK, A CORPORATION 0F NEW' YORK SLITTING MEANS Application led October 2,8, 1927. Serial No. 229,309.

This invention relates generally t'oslitting means such as are employed in dividing a web of flexible material into two or more sections.

One type of such slittingl means is known as score out slitting means rom the fact that relatively blunt-edge score cutters coact with backing means, preferably a roll having a glass-hard surface, to cut the paper. Machines of this type, as now generally constructed and as exemplified in Patent No. 1,076,189, are provided with means, .whatever their character, to drive the backing means and this latter, in turn, drives the score cnt ters. Paper, in connection with which these machines are generally used, varies in character and texture in the same web at different points thereof so thatso'meti'mes the different score cuttersv encounter different operatlng conditions at the same moment and although.

the backing means are theoretically driven at the same surface speed as the moving web this is not always the case and therefore a tearing action rather than a cutting action/ lace. In addition, webs are now being ma e in very wide widths and consequently the backing means, consisting of a glass-hardened roller or a roller having a glass-hardened outer sleeve or surface,`

must, needs be made very heavy to 'prevent flexure or springing of the parts.

The main object and feature of this invention is to overcome the difliculties above stated in such a way that the machine can be made of lighter material and this without sacricing any ofthe advantages now inherent in the machines known in the art.

Accordingly the invention consists inthe feature of-construction and combination of parts hereinafter disclosed and pointed out in the claims. v

In the accompanying drawings the invention is embodied in several concrete and preferred forms in which Fig. 1 is a somewhat diagrammatic view in lside elevation of a slitting'machine-embody- Fig. 3 is a view similar to Fig. 1 but showingra modified form of the invention;

1g. 4 is a horizontal sectional view substantially on the plane of line 4-4 of Fig. 3;

Fig. 5 is a sectional view of a second modi-v fied form of the invention, and

Fig. 6 is a sectional view of still modification of the invention.

1 indicates a -circularbacking member having preferably a glass-hardened surface and 2 is a circular score-cutter in engagement therewith. These members are freely rotatable as will be pointed out in detail later. Suitable guiding and web-pulling means are provided, of any suitable character, to direct and pull web 3 of flexible material between another the members of the slitting means substan-` tially at the point of engagement with each chronism with each other` and with the movement of the web. The guiding and webpulling .means, in this instance, consist of roller 4 and drums 5 and 6 and winding shaft 7. One preferred form of backing means is shown in Figs. 1 and 2 where 8 indicates a support in the form of an I-beam suitably supported in the machine. As indicated in Fig. 2 there is preferably a backing member for each score-cutter, the backing members being arranged substantially in coaxial alinement, veach backing member consisting of a bearing 9 transversely adjustable on. the suport as shown and provided with an antiricton member ,10, the outer race of which is a glass-hardened ring that constitutes the backing member proper. The score cutters are mounted in any conventional way, such as shown in Patent No. 1,076,189 and have an anti-friction member 1. The score cutters are adjustable ltoward and away from the backing means and also transversely so as to match up with the backing means. The foregoing construction is apreferred form and it will be seen that the heavy, solid backing means usually employed is dispensefi with although it will be understood that this is not necessary for all purposes of this inventhat the position of the slitting elements is reversed, score-cutters 2 being directly beneath the front winding drum and backing member 1 being outside of the plane thereof. In Fig. 4 backing member` 1" is a drum with which two or more score-cutters are engaged and it.will be understood that there may be several such drums substantially in coaxial alinement or there may be just one drum extending laterally across the machine. The drum here is carried by a shaft 12 provided with ball bearings 13 in which the drum rotates and the shaft is carried by brackets 14 that are adjustable on the I-beam.

In Fig. 5 shaft 13 is likewise carried by brackets 14 adjustable on an I-beam and said brackets have ball bearings 15y in which the shaft rotates. This shaft may be driven as by means of gear 16 asnear the speed of the web as possible. Backing member 1 is however freely revoluble and consists here of a hardened ring carried by outer race member 17 of ball bearing 18, the inner race 19 of which is carried by shaft 13. Although only one backing member is here shown it will be understood that there may be several of these on shaft 13.

In Fig. 6 a shaft as 20 may extend the full distance across the machine and on this shaft may be mounted one or more drums or members as 21 in adjustable relation to said shaft. The outer surface 1IV of drum or member 21 constitutes here the backing member.

I claim:

1. In a slitting device the combination of a freely revoluble circular backing member, a freely revoluble circular score-cut slitter member to engage the backing member, and web guide and pulling means to direct and pull a web of flexible material in a straight run between the members aforesaid and substantially tangential to lboth of said slitting members at their point of engagement with each other to thereby rotate both of said members substantially in synchronism with each other and with the movement of the web.

2. Slitting means including: a support. backing meansconsisting of a plurality of freely revoluble circular backing members arranged substantially in coaxial alinement on the support together with means to effect individual lateral adjustment thereof with respect to said support, and a plurality of freely revoluble circular score-cut slitter members to engage the backing members.

3. In a slitting device the combination of a support, backing means consisting of a plurality of freely revoluble circular backing members arranged substantially in coaxial alinement on the support, together with means to effect individual lateral adjustment' thereof with respect to said support, a plurality of freely revoluble circular score-cut slitter members to engage the backing members, and web guide and pulling means to direct Vand' pull a web of flexible material in a straight run between the members aforesaid and substantially tangential to both of said slitting members at their point of engagement with each other to thereby rotate both of said members substantially in synchronism with eaclh other and with the movement of the we 4. Slitting means including: a plurality of circular backing members arranged substanmeans to direct and pull a web of flexible' material in a straight run between the backing member audscore-cut slitter and substantially tangential to both of said slitting members at their point of engagement with each other to thereby rotate said lbacking member and slitter substantially in synchronism with each other and with the movement of the web. 6. In a slitting device, the combination of two guides spaced apart and so arranged that a flowing web' travels in a straight run when passing from one guide to the other, and two members, constituting a slitting means for the web, located intermediate the two guides, one of said members being a freely revoluble circular backing member and the other a freely revoluble circular score-cut slitter member, said web passing substantially tangentially between the two members at the point of slitting, whereby said web rotates both members substantially at its own speed of travel.

Signed at Brooklyn, in the county of Kings and State of New York, this 19th day of October, 1927.

JAMES A. CAMERON. 

